iMac Pro memory specifications

Learn about the types of random access memory (RAM) and video memory (VRAM) used in iMac Pro (2017).

iMac Pro Model

Max. DRAM

User-
Installable
Slot

AASP-
Installable
Slot

Video/
VRAM

iMac Pro (2017)

128GB

None

2666MHz DDR4 ECC

8GB or 16GB HBM2

The memory in iMac Pro (2017) isn't user-accessible. If the memory in your iMac Pro needs to be replaced, contact an Apple Store or Apple Authorized Service Provider. If you’d like to upgrade the memory in your iMac Pro, an Apple Authorized Service Provider can help. Before you schedule an appointment, confirm that the specific store or service provider that you contact offers memory upgrade services.